CC2400-RTR1 datasheet(11/84 Pages) TI1

11 / 84 page

CC2400

SWRS042A

Page 11 of 83

10 RSSI / Carrier Sense section

Parameter

Min.

Typ.

Max.

Unit

Condition / Note

For 1Mbps and 1 MHz channel

width.

RSSI range / Carrier sense range

(The range is from –100 dBm to

–20 dBm typically)

RSSI settling time

µs

RSSI accuracy

± 4

See page 44 for details

Table 6 RSSI / Carrier sense characteristics

11 IF section

Parameter

Min.

Typ.

Max.

Unit

Condition / Note

Intermediate frequency (IF)

MHz

Digital channel filter bandwidth

125

1000

kHz

The digital channel filter 6dB-

bandwidth is programmable in

steps: 125, 250, 500 and 1000

kHz. See page 39 for details.

Table 7 IF characteristics

12 Frequency Synthesizer section

Parameter

Min.

Typ.

Max.

Unit

Condition / Note

Crystal oscillator frequency

MHz

See page 49 for details.

Crystal frequency accuracy

requirement

±ppm

The total crystal frequency

accuracy, i.e. initial tolerance plus

aging and temperature

dependency, will determine the

frequency accuracy of the

transmitted signal. 1 Mbps FSK,

250 kHz deviation.

Crystal operation

Parallel

C4 and C5 are loading

capacitors, see page 49

Crystal load capacitance

16 pF recommended

Crystal ESR

Ω

Crystal oscillator start-up time

1.13

16 pF load

Note: This time can be reduced to

15 µs by enabling the XOSC core

in power-down using the

MANAND register.

Phase noise

-108

-114

dBc/Hz

Unmodulated carrier

At ±1 MHz offset from carrier

At ±2 MHz offset from carrier

At ±5 MHz offset from carrier

PLL loop bandwidth

kHz

CC2400-RTR1 Datasheet(PDF) 11 Page - Texas Instruments

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